Swift-XRT Survey of Fermi Unassociated Sources


These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.


Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

4FGL J2030.5+2235

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J2030.5+2235 Swift-XRT detections in the field for 4FGL J2030.5+2235

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 30 31.13 +22 34 35.55 4.88 (9 ± 2) x 10-3 50 6.066 5.713
2 20 30 41.94 +22 46 47.55 5.14 (5.8 ± 1.3) x 10-3 28 4.974 4.639

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2030.5+2235 Swift-XRT image with known radio, optical and UV sources for 4FGL J2030.5+2235

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J203031.3+223434 20 30 31.30 +22 34 34.32 1.13 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J203031+223439 20 30 31.70 +22 34 39.00 1.03 NVSS
2 NVSS J203037+223600 20 30 37.99 +22 36 00.00 1.33 NVSS
3 TGSSADR J203021.2+223435 20 30 21.31 +22 34 36.12 2.79 GMRTAS150M
4 NVSS J203045+223646 20 30 45.41 +22 36 47.16 3.19 NVSS
5 NVSS J203017+223708 20 30 17.59 +22 37 08.04 3.72 NVSS
6 NVSS J203030+223048 20 30 30.60 +22 30 47.88 4.89 NVSS
QORG J203030.6+223048 20 30 30.60 +22 30 47.88 4.89 QORGCAT
7 395- 12 20 30 30.60 +22 40 55.92 5.28 NLTT
8 HD 346772 20 30 13.03 +22 38 39.48 5.38 HDEC
9 PSR 2028+22 20 30 35.90 +22 30 07.92 5.59 DIXON
10 NVSS J203046+224031 20 30 46.20 +22 40 31.08 5.80 NVSS
11 NVSS J203008+223353 20 30 08.11 +22 33 52.92 5.89 NVSS
12 PSR J2030+2228 20 30 40.39 +22 28 22.08 7.54 ATNFPULSAR
13 NVSS J202956+223606 20 29 56.21 +22 36 06.12 8.38 NVSS
14 NVSS J202956+223908 20 29 56.90 +22 39 07.92 8.91 NVSS
15 SAO 88784 20 30 57.84 +22 28 39.36 9.15 SAO
BD+21 4242 20 30 57.86 +22 28 38.28 9.16 ACRS
PPM 111318 20 30 57.89 +22 28 38.64 9.16 PPM
HD 346779 20 30 57.91 +22 28 38.64 9.17 HDEC
16 HD 346771 20 29 50.14 +22 38 33.00 10.18 HDEC
17 HD 346773 20 30 39.05 +22 47 10.68 11.61 HDEC
18 HD 346770 20 29 43.90 +22 38 48.12 11.63 HDEC
19 NVSS J203105+222558 20 31 05.90 +22 25 58.08 12.41 NVSS
20 WDS J20312+2227 20 31 12.00 +22 26 60.00 12.60 WDS
PPM 111329 20 31 12.60 +22 26 31.20 13.03 PPM
BD+21 4245 20 31 12.60 +22 26 31.20 13.03 ACRS
21 HD 346778 20 31 12.60 +22 26 30.84 13.04 HDEC

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